Gas burner



MMMMM s GAS BBBB ER Patented Nov. 20, 1928.

UNITED STATES PATENT OFFICE.`

GAS BURNER.

Application led June 15, 1926, Serial No. 116,244, and in Germany January 19, 1925.

over such gas burner even burns under water,

so long as the pressure of the water is not higher than the pressure of the gas at the burners.

According to the general principle of my invention a combustion chamberl is provided between the burner and the firing chamber. This combustion chamber is provided with a y restricted orifice with a broad slotted or slitl opening. The inlet for fuel or mixture is also appropriately formed as a broad slit.

In the accompanying drawings Figure 1 is a vertical section through the axis of a gas burner in accordance with my invention on line of Figure 2.

Figure 2 is the same gas burner in a vertical section turned 90 with reference to Figure l on the line y-y.

In order t-o obtain a high initial tempera ture there is interposed between the opening of the burner l and the firing chamber 2 a combustion chamber 3 having a restricted opening l formed to a broad slotted or slit opening. By this construction the primary heat produced by the iiame is thrown back into the interior of the flame and the cold portion of the flame is restricted. It is therefore requisite to enlarge the reflecting surfaces 5 to a practical maximum of reiiecting surfaces in conjunction with a practical 4o minimum of the volume of the heating fiame. For this purpose the combustion chamber is provided with a restricted orifice 4 in the form of a broad slotted opening or slit and also the inlets for fuel or mixture and the fuel and air are formed as broad slits or slotted openings. In this manner the density of the iiame and the kinetic energy of the particles thereof is increased and the initial temperature raised. The energy of the mo- 5o tion of the glowing mass is thereby directly applied to the objects to be heated as such motion obtains an extra Iinal velocity- The iron inlets for fuel and air or mixture in all cases are protected by transverse portions 6 of refractory material from the reiected heat.

Having thus particularly described and ascertained the nature of my said invention and in what manner the same is to be per- 6o formed, I declare that what I claim is:

In apparatus of the class described, a structure providing a firing chamber, a gas burner, a combustion chamber between the burner and the firing chamber, said combustion chamber having a restricted orifice formed to a broad slotted opening and inlets for fuel and air yformed as broad slits and provided with transverse protecting portions of refractory material. y

In testimony whereof I have hereunto signed my name.

MAX NUSS. 

